Results 61 to 70 of about 243,379 (303)

Research on energy instability of composite coal based on unsteady diffusion to cause disaster

Meitan kexue jishu
In China, due to the influence of geological tectonics, the phenomenon of primary structural coal and tectonic coal stratification exists in many coal seams.
Yujin QIN, Weiwei SU, Shouqing LU, Mingjie LI   +3 more
doaj   +1 more source

Effect of Matrix-Wellbore Flow and Porosity on Pressure Transient Response in Shale Formation Modeling by Dual Porosity and Dual Permeability System

Journal of Chemistry, 2015
A mathematical dual porosity and dual permeability numerical model based on perpendicular bisection (PEBI) grid is developed to describe gas flow behaviors in shale-gas reservoirs by incorporating slippage corrected permeability and adsorbed gas effect ...
Daolun Li, Wenshu Zha, Dewen Zheng, Longjun Zhang, Detang Lu   +4 more
doaj   +1 more source

Adsorption characteristics and controlling factors of marine deep shale gas in southern Sichuan Basin, China

Journal of Natural Gas Geoscience, 2022
Deep shale gas (3500–4500 m) is the important replacement field of shale gas production growth in the future China. The research on key parameters of deep shale-gas reservoir is critical to determine its basic geological characteristics and establish a ...
Xuewen Shi, Wei Wu, Shangwen Zhou, Chong Tian, Du Li, Dingyuan Li, Yi Li, Changhong Cai, Yulong Chen   +8 more
doaj   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Identifying the Azobenzene/Aniline reaction intermediate on TiO2-(110) : a DFT Study [PDF]

, 2013
Density functional theory (DFT) calculations, both with and without dispersion corrections, have been performed to investigate the nature of the common surface reaction intermediate that has been shown to exist on TiO2(110) as a result of exposure to ...
Abrahams S. C., Clark S. J., Corma A., D. P. Woodruff, Gao S.-P., Grirrane A., Haruta M., J. Robinson, Kowalski P. M., Kreikemeyer-Lorenzo D., Li S.-C., Li S.-C., M. K. Bradley, McNellis E. R., Naumkin A. V., Ortmann F., Palmer M. H., Pasquarello A., Pehlke E., Perdew J. P., Prates Ramalho J. P., Prates Ramalho J. P., Prates Ramalho J. P., Woodruff D. P., Woodruff D. P., Yin X.-L.   +25 more
core   +1 more source

Nonthermal Plasma Reduction of Nickel Oxide Layers by Atmospheric Pressure Dielectric Barrier Discharge in Argon/Hydrogen

Advanced Engineering Materials, EarlyView.
This work explores the reduction of nickel oxide layers using dielectric barrier discharge plasma in an argon–hydrogen atmosphere. The results reveal a strong temperature dependence, enabling complete reduction of thick oxide layers at 200°C within seconds.
Maria Argirusi, Viktor Udachin, Sascha Jan Zimmermann, Alexander Tillmanns, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +5 more
wiley   +1 more source

Adsorbed Gas Storage Digital Twin

JOM, 2023
AbstractOne possibility for energy storage are fuels. With gaseous fuels like hydrogen or methane, significant efforts are necessary for a feasible storage in terms of compression or liquefaction. This is of particular importance in the mobility sector.
openaire   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Log Evaluation Method for Adsorbed Gas Amount in Deep Shale Based on Modified BET Multilayer Adsorption Model

Cejing jishu
Gas content is a key index of shale reservoir evaluation. The gas content is influenced by the coupling of temperature and pressure. Especially under high formation pressure, it’s difficult to accurately predict the adsorbed gas amount of shale ...
ZHONG Guanghai, LI Yuegang, LI Shengjie
doaj   +1 more source

Investigation of the factors influencing methane adsorption on illite

Energy Science & Engineering, 2019
The molecular simulation method was used to investigate the adsorption behaviors of methane on illite. The effects of several factors on methane adsorption, free gas amounts, and the proportions of absorbed gas in the illite nanopores, including the pore
Jian Xiong, Xiangjun Liu, Lixi Liang, Xiaocheng Wei, Peng Xu   +4 more
doaj   +1 more source